Hey guys i developed a noise i thought was origionating from the t56, mainly because it was a knock/growl from around the area of the tailshaft housing. well my granatelli torque arm was transmitting a fragged rear end noise right up to that point. I pulled the diff cover after running the car on the rack and determining it WAS the diff. and nothing unusual at first, then i notice three long strips of gear teeth stuck to the magnet on the diff cover. hehe i ripped three teeth off the pinion gear. well with 4.10s in a 7.5 i guess i was asking for it.